Incandescent lamp guard



Patented Aug. 8, 1933 UNITED STATES PATENT OFFICE 1,921,295 INCANDESCENI LAMP GUARD George B. Hume and Grover City,

Application Match 21,

3 Claims.

This invention relates to incandescent lamp guards of that class for the protection primarily cf lamps used in machine shops, garages, etc. The invention relates more especially guard of that class having an element which normally forms a closure for the bottom of the guard to protect an incandescent lamp therein, the said element being operable to uncover the bottom of the guard to permit the lamp to be disposed therein or removed therefrcm.

an efficient device characterized as strong, durable and inexpensrve construction.

With the object mentioned in view, the inventien consists in certain novel and useful features of construction and combinations cf parts as hereinater described; and in order that it may be fully understood, reference is to be had to the accompanymg drawing, in which:-

Figure 1 is a side view of a guard equipped With a bottom closure embodymg the invention, a lamp, socket and cord being illu'strated to show the parts in operative relation.

Figure 2 is a horizontal section taken through the guard just above the bottom, and also shows the latter in open position in dotted limes.

Figure 3 is a fragmentary side elevation With the bottom in open position.

In the said drawing, 1 indicates an electric light cord provided With the conventional socket 2 for an incandescent lamp 3.

A guard comprises an upper part for enclosing the upper lamp band for engagement with the socket, and a bottom member. The upper part and clamp or attachmcnt means may be of any suitable or conventional construction. As shown, there is a cylindrical ske1e- 4 cf wire to enclose the lamp and a clamp band 5 to be fitted around the socket. If desired the upper or body portion may be ci transparent or translucent material if the lamp is to be used where the light emitted is to be softened or colored, it being understood that the type or character of the body portion and the means for securing the guard to the socket form The bottom member 15 the novel feature of the guard, and to provide for operative conthelower end of the body is preferably in the form of a ring 6, and the points of attachment to the body are equispaced and constitute stops movement of the elements, hereinaiter identified, which constitute the novel feature of the guard. The bottom member consists of a se- W, Walls, Kansa M0.

1932. Serial No. 600,206. (01. 240-102) of elements arranged in a circle so that at one side, overlaps the contigucus side of an adjacent element and at the opposite side is overlapped by the side of the other adjacent element, this overlapping relation obtaining, though t0 a variable degree, regardless of whether the elements are positioned to form a closure for the lower end of or to uncover the latter so as to give free access to the interior thereof, and, if desired, to provide a stable base.

The elements in their preferred form, consist of a series of loops 7, cf substantially semi-circular form, terminating in eyes 8 hingedly engaging the ring 6, and when-the said elements are in closed position, they converge downward ly (sec Figure 1) and form a skeleton bottom for the guard which prevents access to the lamp without interfering appreciably With downward emission of light. When in open position, each element 7 projects drvergmgly downward from that their 100p or bridge portions parallel With but belcw that of the ring 6 and thus affcrd a broad truncated conical base for supporting the guard without 80 other aid, in an upright position on a fiat surface or on supports at opposite sides of a chamber which it is desired to clearly illuminate for inspection or other purpose.

From the above description it will be apparent that we have described a construction embodying all of advantage set forth as desirable, and it is to be understood that we reserve the right to all changes Within the spirit and scope of the appended claims. 9

We claim:

1. A guard comprising a hollow body portion open at one end, and a member for giving or preventing access to the intericr of the guard at said open end thereof, said membcr comprising a series of substantiaily semi-circular elements each hinged to the guard for swmgmg movement in planes radially overlapping the adjacent element at one side and partly underlapping the adjacent element at the opposite side and completely spaced apart laterally relative to any other element of said member.

2. A guard comprising a stiff hollow skeletcn 105 body of generally cylindrical form and including a ring at the lower end and equi-spaced eyes through which the ring extends, and a skeleton member for completely uncovering or covring said lower end for the entrance into cr removal from said body ci an incandescent lamp; said 110 ries each one member omprising a series of substantially removal from said body of an incandescent semi-circular sti loup elements arranged lamp; said member comprising a series of subin a circle, each 100p being late1ally spaced from stantially semicircular stifi loop eIements arthe alternately disposed loops and partly overranged in a. circle, each loop being laterally lapping the adjacent loop at one side and underspaced from the alternately disposed loops and 80 .sa1d ring extends so as to be incapabl e of bodily disposed outward of a pair of the eyes through 85 eyes through which the ring extends, and a eye through which said ring extends. 90 skeleton member for completely uncovering or GEORGE B. HUME. covering said lower end for the entrance into or GROVER W. WALLS. 

